lance_core/
lib.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright The Lance Authors
3
4use arrow_schema::{DataType, Field as ArrowField};
5
6pub mod cache;
7pub mod container;
8pub mod datatypes;
9pub mod error;
10pub mod traits;
11pub mod utils;
12
13pub use error::{ArrowResult, Error, Result};
14
15/// Column name for the meta row ID.
16pub const ROW_ID: &str = "_rowid";
17/// Column name for the meta row address.
18pub const ROW_ADDR: &str = "_rowaddr";
19
20lazy_static::lazy_static! {
21    /// Row ID field. This is nullable because its validity bitmap is sometimes used
22    /// as a selection vector.
23    pub static ref ROW_ID_FIELD: ArrowField = ArrowField::new(ROW_ID, DataType::UInt64, true);
24    /// Row address field. This is nullable because its validity bitmap is sometimes used
25    /// as a selection vector.
26    pub static ref ROW_ADDR_FIELD: ArrowField = ArrowField::new(ROW_ADDR, DataType::UInt64, true);
27}
lance_core/lib.rs

lance_core/
lib.rs
